Enzymes are catalysts which means that they
A) speed up biochemical reactions which would normally occur too slowly
B) slow down biochemical reactions which would normally occur too quickly
C) prevent unwanted biochemical reaction occurring
D) destroy harmful chemical species
A
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An unusual spring has a restoring force of magnitude F = (2.0 N/m) x + (1.0 N/m2)x2, where x is the stretch of the spring from its equilibrium length
A 3.00 kg mass is attached to this spring and released from rest after stretching the spring 2.00 m. What is the speed of the mass when the spring returns to its equilibrium length? A) 3.27 m/s B) 5.48 m/s C) 4.33 m/s D) 7.41 m/s E) 2.11 m/s
What is the name for the period of time between one new Moon and the next?
What will be an ideal response?
Two different continuous water waves on the surface of a pond would be expected to have roughly the same
A) amplitude. B) frequency. C) wavelengths. D) wave speeds. E) energy.
In a collision between two unequal masses, which mass receives a greater magnitude impulse?
A) the smaller mass B) the larger mass C) They receive equal impulses.